Manchester United have a forward line that can rival any of the major clubs in world football.

That is the opinion of former Arsenal midfielder and current Sky Sports analyst Paul Merson, who has singled the Old Trafford side out as the one team to watch this season as they are not safe in a game even if they have already banked a one goal advantage.

Louis van Gaal's Red Devils are seen to have a porous defence, but on occasion, can escape a loss or even a draw by sheer virtue of their awe-inspiring attack - featuring one of the signings of the summer Angel di Maria, the loan recruit of Radamel Falcao and previously-existing strikers Wayne Rooney and Robin van Persie.

Manchester United, currently fourth in the current table, can consolidate their position in the Premier League even further with a victory away from home when they clash with West Bromwich Albion on Monday evening - a fixture Merson expects them to triumph in by a 4-2 score.

"United are a team that has to go out and score goals because one goal isn’t enough for them to win a football match," he said.

"I don’t know when we’ll next see Manchester United come off the pitch having won 1-0. It makes good TV, but you ain’t going to win anything doing that.